Mustang V8-4.6L (2009)
Yes
INSTALL a new SDARS module. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
network test with the scan tool.
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Pinpoint Test G: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool Or No
ISO 9141 Network Communication
Communications Network
Pinpoint Tests
Pinpoint Test G: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool Or No ISO 9141 Network Communication
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 46, Supplemental Restraint System for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams
By Number
Normal Operation
The Restraints Control Module (RCM) communicates with the scan tool through the ISO 9141 communications network, circuit 70 (LB/WH). The RCM
is the only module on the ISO 9141 network. Voltage for the RCM is provided by circuit 937 (RD/WH). Ground is provided by circuit 1203 (BK/LB).
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
RCM
PINPOINT TEST G: PINPOINT TEST G: THE RCM DOES NOT RESPOND TO THE SCAN TOOL OR NO ISO 9141 NETWORK
COMMUNICATION
WARNING: Never probe the electrical connectors on air bag, Safety Canopy(R) or side air curtain modules. Failure to follow this instruction
may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to
follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which
increases the risk of serious personal injury or death.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint
test. See: Initial Inspection and Diagnostic Overview/Communications Network/Inspection and Verification
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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G1 CHECK THE DATA LINK CONNECTOR (DLC) PINS FOR DAMAGE
-
Ignition OFF.
-
Disconnect the scan tool cable from the DLC.
-
Inspect the DLC C251-7 for damage.